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BUSINESS INFORMATION SYSTEMS (İŞLETME BİLGİ SİSTEMLERİ) - (İNGİLİZCE) Dersi IT Components of Business Information Systems soru cevapları
BUSINESS INFORMATION SYSTEMS (İŞLETME BİLGİ SİSTEMLERİ) - (İNGİLİZCE) Dersi IT Components of Business Information Systems soru detayı:
SORU:
How many steps are there in the database design and data planning?
CEVAP:
The steps of the database design and data planning are summarized as can be seen below (p:49, Figure 2.8):
- Data Planning: Develops a model of business processes. Enterprise model of business processes with documentation
- Requirements Specification: Define information needs of end users in a business process. Description of users’ needs may be represented in natural language or using the tools of a particular design methodology.
- Conceptual Design: Expresses all information requirements in the form of a high-level model. Conceptual Data Models often expressed as entity relationship models
- Logical Design: Translates the conceptual models into the data model of a DBMS. Logical Data Models e.g., relational, network, hierarchical, multidimensional, or object-oriented models
- Physical Design: Determines the data storage structures and access methods Physical Data Models Storage representations and access methods